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2201220101 = 17999112409
BaseRepresentation
bin1000001100110011…
…1111010000000101
312200101222120022102
42003030333100011
514002003020401
61002231441445
7105356030213
oct20314772005
95611876272
102201220101
11a2a593273
12515226285
1329106ab02
1416c4b7cb3
15cd3ad56b
hex8333f405

2201220101 has 8 divisors (see below), whose sum is σ = 2215929600. Its totient is φ = 2186537760.

The previous prime is 2201220079. The next prime is 2201220121. The reversal of 2201220101 is 1010221022.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2201220101 - 214 = 2201203717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201220121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171185 + ... + 183593.

It is an arithmetic number, because the mean of its divisors is an integer number (276991200).

Almost surely, 22201220101 is an apocalyptic number.

It is an amenable number.

2201220101 is a deficient number, since it is larger than the sum of its proper divisors (14709499).

2201220101 is a wasteful number, since it uses less digits than its factorization.

2201220101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13579.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2201220101 is about 46917.1621157972. The cubic root of 2201220101 is about 1300.8318346792.

Adding to 2201220101 its reverse (1010221022), we get a palindrome (3211441123).

The spelling of 2201220101 in words is "two billion, two hundred one million, two hundred twenty thousand, one hundred one".

Divisors: 1 179 991 12409 177389 2221211 12297319 2201220101